文献类型：期刊文献

中文题名：PBSA-g-MG增容改性热塑性淀粉/PBSA复合材料

英文题名：Thermoplastic Starch/PBSA Composite Compatibilized and Modified by PBSA-g-MG

作者：王培磊[1];孟伟[1];陈芳萍[1];刘昌胜[1]

机构：[1]华东理工大学材料科学与工程学院,上海200237

年份：2018

卷号：31

期号：1

起止页码：63

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2017_2018】；

基金：国家十二五科技支撑项目(2012BAD32B00)

语种：中文

中文关键词：塑性淀粉;PBSA;复合材料;相容性;力学强度

外文关键词：thermoplastic starch(TPS);PBSA;composite;compatibility;mechanical strength

摘要：以过氧化二异丙苯(DCP)为引发剂,通过熔融接枝将马来酸酐(MA)和甲基丙烯酸缩水甘油酯(GMA)接枝到PBSA(聚丁二酸/聚己二酸-co-丁二醇酯)分子链上,制备了PBSA-g-MG增容剂。采用红外光谱和核磁共振氢谱对增容剂的化学结构进行表征,并探究了PBSA-g-MG的添加量对热塑性淀粉(TPS)与PBSA复合材料(TPS/PBSA)的力学性能、微观形貌、动态热机械性能和吸水性能的影响。结果表明,该增容剂可改善纤维增强的TPS/PBSA复合材料的界面相容性,TPS相与PBSA相的T_g相互靠近,TPS/PBSA的力学性能和耐水性提高。添加质量分数8%增容剂的TPS/PBSA复合材料在59%湿度下的力学强度可达19.4 MPa,比未增容的复合材料提高了将近130%。
Maleic anhydride(MA)and glycidyl methacrylate(GMA)were grafted onto poly(butylene succinate-co-butylene adipate)(PBSA)molecular chains in the melt state by using dicumyl peroxide(DCP)as an initiator.Compatibilizer marked PBSA-g-MG was successfully prepared.The chemical structure of the compatibilizer was characterized by FT-IR and 1H-NMR.The effect of PBSA-g-MG dosage on mechanical properties,microstructure,dynamic mechanical properties and water absorption of fiber-reinforced thermoplastic starch(TPS)/PBSA composites were also studied.The results showed that PBSA-g-MG improved the interface compatibility of TPS/PBSA composite,and made T g of TPS phase and that of PBSA phase close to each other.The mechanical strength and water resistance of TPS/PBSA also improved due to the introduction of PBSA-g-MG.The mechanical strength of TPS/PBSA composite with 8%mass fraction compatibilizer reached 19.4 MPa at 59%relative humidity,which was nearly 130%higher than that of non-compatibilized composites.